I found a good documented PR in another project which explains the dbus errors in detail.

the dbus errors in the mm logs are only noise, see https://forum.magicmirror.builders/topic/20032/docker-watchtower-container-restarting-and-mm-container-errors-after-upgrade/7#

If the problem occurs:

• can you provide the logs of the labwc container? docker logs labwc
• can yo try to restart the containers without reboot with cd /opt/mm/run && docker compose up -d --force-recreate?

@Klinge

from the module README.md:

Please test the used commands first outside of MagicMirror². If they not work from a terminal it makes no sense to use them inside this module.

So what is the output if you run gpiomon -r -b gpiochip0 17 on your machine?

And provide the version with gpiomon -v